Tietoja kirjasta

Kuvaus

This book describes the various filtration processes using membranes such as microfiltration, ultrafiltration, nanofiltration, reverse osmosis. Basic fluid mechanics concepts are reviewed in order to permit to describe the flow inside filtration modules and their circuits. It provides methods for calculating permeate fluxes, pressure drops and shear rates, both in laminar and turbulent flows and to model flows in industrial systems. It reviews the main applications of membrane filtration in dairy and food industries, in medical and biotechnological applications and waste water treatment. It describes a technico-economic method for minimizing process costs. The last chapter describes the recent concept of dynamic filtration with rotating or vibrating membranes which is very efficient, together with available industrial modules.

Sisältö

Introduction

Principles and main parameters of filtration

Classification of membranes processes

Fluid Mechanics

Poiseuille Flow

Turbulent flow (Re >2600)

Laws of tangential filtration

Various types of membranes and modules

Organic membranes (cellulosic and polymeric)

Mineral membranes

Various types of modules

Modelisation of membrane circuits

Conservation of volume and mass flow rates

Single batch filtration circuit

Diafiltration in single batch

Batch with recirculation loop

Continuous operation with loops in series and parallel modules

Experimental tests on pilots

Membranes cleaning

Applications of membrane processes

Cross flow filtration against the concurrence

Applications to dairy industry

Other applications to food industry

Medical and biotechnological applications

Process optimization by a technico-economic method

High shear rate dynamic filtration

Principle of dynamic filtration

Industrial systems of dynamic filtration

Systems with vibrating membranes

Summary

References

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